bigad shaban reports. >> reporter: family and friends of 13-year-old andy lopez gathered at his funeral mass to say their final good-byes. many still struggle to make sense of his death. >> it makes me very upset that something like this would happen to a 13-year-old who was just walking down the street to go see his friends. >> reporter: investigators say sonoma county sheriff's deputy eric gailhouse shot the teen seven times in ten seconds after mistaking his pellet gun for an ak-47. he is a 20-year veteran. >> it's tragic event on many levels for many, for the lopez and the community but it's affecting us also. just hours before lopez's funeral, thousands from across the state, including many middle and high school students, marched to the sheriff's department in protest. >> justice needs to be done for him and for every little teenager kid that they can feel free to walk down the street with no fear. >> reporter: the shooting has inspired a series of rallies in the normally quiet town of santa rosa. >> what do we want? >> justice! >> when do we want it? >> now! >> reporter: the fbi,